ML20024B437

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Ro:On 731104,during Heatup,Electromatic Relief Valve RC-66 (RC-RV3) Failed to Close Properly.Pilot Valve Will Be Disassembled for Insp
ML20024B437
Person / Time
Site: Oconee, Crane  Duke Energy icon.png
Issue date: 12/11/1973
From: Burnley R, Mcconnell R, Pittman R
BABCOCK & WILCOX CO.
To:
References
TASK-03, TASK-3, TASK-GB GPU-2513, NUDOCS 8307080728
Download: ML20024B437 (9)
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b 8AsC0Cx a elEC0x [ SITE PROBLEM REPORT CONTRACT h0620-ocok SPR ha. //8 REY. NG. C C> CUSTC4ER 6:y, power ee.m.:-, VENDOR P.O. NO. TASK ha. 1 9 GROUP h3. ;.4.{ SEO.h0.o 3 b 4 RE0'O. RESOL.DATE RE0'O. CCMP. DATE SliE ENGINEER r E.L. Iogan L I.. TITLE EL':C'l'. RIT., VLV. CPIP,CIO:IAL FAILURE L-f.- CESCRIPil0N CF PROBLEM '.' hen RC k (RC-V2) was cycled at RC3 condit1cns of 2155 psig. a pressure decreased to 2125 psig and the Quench tank pressure and 5kS T. Rp8-10 psig indicating that RC-66 (RC-RV3) electrccatic relief valve ~ increased to was not closing. Electrical indications were that valve was closed-Investigation revealed sc=e steam ccming frca exhaust port en electrcuatic pilot valve. It appear s that pilot valve is not seating prcperly. F'. V SI AIUS - ACilCN 10 CATE INCLUQiNG PERSONS CCNT ACTED Discussed with Roger Pitt:an and Bob Burnley etien. g Duke Maintenance planning to disasse=ble pilot valve for ins FURTHER ACil0N RECCMMEN O SI SITE PER$0NNEL i* ^

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- J I l b r r INSTRUCTT' NS TOR P*JS-21091 - SITE PR03!.Dt REPCRT initiated bv NPC Welear Service

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(1) Originator - Till in: Cuno=er; Contract Nu=ber; Vendor; Purchase Order F Nu=ber Task Nu=ber; Croup Nu=ber; Sequence Nu=ber; 1 Name; Title; Description of Problem; Status; Turther Action Recon = ended by Site Personnel; Originator Signature and Date; Vendor Claim (if applicable). (2) Site Operations Manager - Till in: SPR Number; Revision Nu=ber; Req'd. f Resol. Date; Req'd. Co=p. Date; Approval Signature; Date. (3) Nuclear Service Support Engineer - Fill in: Cost Category; Authorized f Charge Nu=ber. [? 4 l I (4) Task Engineer - Till in: Resolution; Reco== ended Std.'s Change *; (if I applicable TC Req. and FC Nu=her); Signature F and Date. l l.

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1 , 5) Tield Engineer - Inplacent resolution; upon co=pletion, fill in: Co=pletion F. ( 1 Report; Date Co=pleted and Signature. { NOTE: If cectstary to deviate from the approved SPR, note deviation and ~ submit revised SPR to the Site Operations Manager. h-i (6) Site Operations Manager - Approve completion; sign. y C Ynitiated by WJ Construction company ~ (1) Originator - (Same as (1) above) ,~ (2) Construction Co. Site Representative - (Sa=e as (2) abcte) (3) Project Manager - (Same as (3) above) ~ [I (4) Task Engineer - (Same as (4) above) I L (5) Construction Co. Site Representative - (Sa=a as (5) and (6) above) L L i 7 1 t. F s t lD25fI - a 4 (- h -w-E

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E. V. DeCarli Quality Assurance DATE \\ ~1 ' I 9 '9 3 [ w The attaI:hei, cleared OfR is sutcitted for your information. [ t. TO: J. N. Kaelf n-Arkansas J. P. Kennedy-SML'D ( s K. E.. Suhrke ~ jC - -. y q..>._- .e J. D. Phinney-Met Ed Attached is one copy of Site Probles Report No. l M vhich has been processed on Contract c20 C d Your contract or centracts r.my have the potential for a similar problem. The Site Problem Report is being forvarded 'for your infor=ation and use to prevent problems from reedering on. following contracts. A mere complete file on the problem is available in the Nacicar Service area. l RD4AdKS: I' 5' i. I C' I,$:- 9 b* k G.du,QNLR/-Al56 Rf\\ s a, s_ NUCLEAR SEVICE GJPf*JRT DGI!m r, w 1

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